Home / 89,649.91-123,716.88-49,363.58

Finding the Fourth Proportional to 89,649.91, 123,716.88 and 49,363.58

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Solution

The fourth proportional to 89,649.91, 123,716.88 and 49,363.58 is: 68,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,649.91 : 123,716.88 = 49,363.58 : x
  2. Step 2: Convert to fraction form
    89,649.91/123,716.88 = 49,363.58/x
  3. Step 3: Cross multiply
    89,649.91x = 123,716.88 × 49,363.58
  4. Step 4: Simplify right side
    89,649.91x = 6,107,108,177.48
  5. Step 5: Solve for x
    x = 6,107,108,177.48/89,649.91
  6. Step 6: Final answer
    x = 68,121.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.